Why Cant You Paint Over Wallpaper. They painted brown and then tried a glazing effect and made a mess. You must wait this length of time before painting to ensure your paint adheres properly over the primer.
That is why I will never put up wallpaper. I went to Sherman Williams and they told me I didnt need to prime. Dianec I dont know if this helps but Im getting ready to paint my kitchen that has wallpaper.
You may want to consider applying a primer before moving ahead with a new coat of paint.
A prior person painted over the wallpaper its down good and tight. Once youre sure the leak has stopped you should test the drywall around the stain to make sure it isnt waterlogged or crumbly from deterioration. Dianec I dont know if this helps but Im getting ready to paint my kitchen that has wallpaper. Consult the label on the primer for the proper curing time--it may be as long as one week.